private void openGlCtrl_MouseDown(object sender, MouseButtonEventArgs e)
{
Mouse.Capture(sender as System.Windows.IInputElement);
Debug.WriteLine("LMBDown");
Point mousePos = e.GetPosition(openGlCtrl);
_ShaderRenderer.GetDepth((int)(mousePos.X) / _RaytracerOptions._Resolution, (int)(mousePos.Y) / _RaytracerOptions._Resolution);
Debug.WriteLine("click (x = " + mousePos.X + ", y=" + mousePos.Y + ")");
Vector3 dir = (_Scene._Camera._Target - _Scene._Camera._Position);
dir.Normalise();
_Pitch = Math.Asin(dir.y);
dir.y = 0;
dir.Normalise();
_Yaw = Math.Asin(dir.x);
if (dir.z < 0)
{
_Yaw = (Math.PI) - _Yaw;
}
_DragStart = e.GetPosition(this);
// Debug.WriteLine("dragstart (x = " + _DragStart.X + ", y=" + _DragStart.Y + ")");
dir = (_Scene._Camera._Target - _Scene._Camera._Position);
dir.Normalise();
dir *= _Scene._Camera._FocusDepth;
_Scene._Camera._Target = _Scene._Camera._Position + dir;
_Scene._Camera.UpdateGUI();
_ImageDrag = true;
}
